Can anybody decipher these numbers? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jacoby · 04-09-2018, 10:14 PM

Trying to figure out what engine I have in my 68 C10. It’s a V8 I know that much lol. The plugs I pulled out of it work in anything from a I6 up to a 400 big block but don’t work in a 283, 307 or 396 which I believe were the only V8 options for 68. They do however come up as the go to plug for the 350. So this makes me think I got a transplant of some sort.

I tried searching these numbers and I think it’s a 350 but I’m not entirely convinced. Figured you guys could help me out. Thanks

**special-K** · 04-09-2018, 10:37 PM

It could be a '72 307, '73 350, or '74 350. The '68 V8s were 307, 327, and 396.

**jocko** · 04-09-2018, 11:12 PM

72 307 130 hp/2bbl built 9 May for an A or F or X body - engine built in Tonawanda NY, car built in Arlington TX. I am guessing A-body (Chevelle) since Novas and Camaros weren't built in Arlington in 72. Hope that helps.

Jacoby · 04-10-2018, 07:24 AM

That helps tremendously. Thanks

04-09-2018, 10:14 PM	#1
Jacoby Registered User Join Date: Mar 2018 Location: Dallas Posts: 43	Can anybody decipher these numbers? Trying to figure out what engine I have in my 68 C10. It’s a V8 I know that much lol. The plugs I pulled out of it work in anything from a I6 up to a 400 big block but don’t work in a 283, 307 or 396 which I believe were the only V8 options for 68. They do however come up as the go to plug for the 350. So this makes me think I got a transplant of some sort. I tried searching these numbers and I think it’s a 350 but I’m not entirely convinced. Figured you guys could help me out. Thanks

04-09-2018, 10:37 PM	#2
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Can anybody decipher these numbers? It could be a '72 307, '73 350, or '74 350. The '68 V8s were 307, 327, and 396. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

04-09-2018, 11:12 PM	#3
jocko Senior Member Join Date: Oct 2009 Location: Godley, TX Posts: 17,976	Re: Can anybody decipher these numbers? 72 307 130 hp/2bbl built 9 May for an A or F or X body - engine built in Tonawanda NY, car built in Arlington TX. I am guessing A-body (Chevelle) since Novas and Camaros weren't built in Arlington in 72. Hope that helps. Last edited by jocko; 04-09-2018 at 11:19 PM.

04-10-2018, 07:24 AM	#4
Jacoby Registered User Join Date: Mar 2018 Location: Dallas Posts: 43	Re: Can anybody decipher these numbers? That helps tremendously. Thanks



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